feat(rvw): Complete Phase 4-5 - Bug fixes and Word export

Summary:
- Fix methodology score display issue in task list (show score instead of 'warn')
- Add methodology_score field to database schema
- Fix report display when only methodology agent is selected
- Implement Word document export using docx library
- Update documentation to v3.0/v3.1

Backend changes:
- Add methodologyScore to Prisma schema and TaskSummary type
- Update reviewWorker to save methodologyScore
- Update getTaskList to return methodologyScore

Frontend changes:
- Install docx and file-saver libraries
- Implement handleExportReport with Word generation
- Fix activeTab auto-selection based on available data
- Add proper imports for docx components

Documentation:
- Update RVW module status to 90% (Phase 1-5 complete)
- Update system status document to v3.0

Tested: All review workflows verified, Word export functional

frontend/src/pages/rvw/components/TaskTable.tsx

@@ -1,7 +1,7 @@
 /**
  * 任务表格组件
  */
-import { FileText, FileType2, Loader2, Play, Eye } from 'lucide-react';
+import { FileText, FileType2, Loader2, Play, Eye, RefreshCw, Trash2 } from 'lucide-react';
 import type { ReviewTask } from '../types';
 import { formatFileSize, formatTime } from '../api';
 
@@ -11,6 +11,7 @@ interface TaskTableProps {
   onSelectChange: (ids: string[]) => void;
   onViewReport: (task: ReviewTask) => void;
   onRunTask: (task: ReviewTask) => void;
+  onDeleteTask: (task: ReviewTask) => void;
 }
 
 export default function TaskTable({ 
@@ -18,7 +19,8 @@ export default function TaskTable({
   selectedIds, 
   onSelectChange, 
   onViewReport,
-  onRunTask 
+  onRunTask,
+  onDeleteTask
 }: TaskTableProps) {
   const allSelected = tasks.length > 0 && selectedIds.length === tasks.length;
 
@@ -127,36 +129,89 @@ export default function TaskTable({
 
   // 渲染操作按钮
   const renderActions = (task: ReviewTask) => {
-    if (task.status === 'completed') {
+    // 待审稿：[开始审稿] [删除]
+    if (task.status === 'pending') {
+      return (
+        <div className="flex items-center justify-end gap-2">
+          <button 
+            onClick={() => onRunTask(task)}
+            className="bg-indigo-600 hover:bg-indigo-700 text-white px-3 py-1.5 rounded-md transition-colors text-xs font-medium flex items-center gap-1"
+          >
+            <Play className="w-3 h-3" />
+            开始审稿
+          </button>
+          <button 
+            onClick={() => onDeleteTask(task)}
+            className="text-slate-400 hover:text-red-500 hover:bg-red-50 p-1.5 rounded-md transition-colors"
+            title="删除"
+          >
+            <Trash2 className="w-4 h-4" />
+          </button>
+        </div>
+      );
+    }
+    
+    // 处理中：[查看进度]
+    if (['extracting', 'reviewing', 'reviewing_editorial', 'reviewing_methodology'].includes(task.status)) {
       return (
         <button 
           onClick={() => onViewReport(task)}
-          className="text-indigo-600 font-bold hover:bg-indigo-50 px-3 py-1.5 rounded-md transition-colors text-xs flex items-center gap-1"
+          className="text-indigo-600 hover:bg-indigo-50 px-3 py-1.5 rounded-md transition-colors text-xs font-medium flex items-center gap-1"
         >
-          <Eye className="w-3 h-3" />
-          查看
-        </button>
-      );
-    }
-    
-    if (task.status === 'pending') {
-      return (
-        <button 
-          onClick={() => onRunTask(task)}
-          className="border border-indigo-200 text-indigo-600 hover:bg-indigo-50 px-3 py-1.5 rounded-md transition-colors text-xs font-medium flex items-center gap-1"
-        >
-          <Play className="w-3 h-3" />
-          开始
-        </button>
-      );
-    }
-    
-    if (task.status === 'extracting' || task.status === 'reviewing') {
-      return (
-        <span className="text-xs text-slate-400 flex items-center gap-1">
           <Loader2 className="w-3 h-3 animate-spin" />
-          处理中
-        </span>
+          查看进度
+        </button>
+      );
+    }
+    
+    // 已完成：[查看报告] [重新审稿] [删除]
+    if (task.status === 'completed') {
+      return (
+        <div className="flex items-center justify-end gap-2">
+          <button 
+            onClick={() => onViewReport(task)}
+            className="text-indigo-600 font-bold hover:bg-indigo-50 px-3 py-1.5 rounded-md transition-colors text-xs flex items-center gap-1"
+          >
+            <Eye className="w-3 h-3" />
+            查看报告
+          </button>
+          <button 
+            onClick={() => onRunTask(task)}
+            className="text-slate-500 hover:text-indigo-600 hover:bg-indigo-50 p-1.5 rounded-md transition-colors"
+            title="重新审稿"
+          >
+            <RefreshCw className="w-4 h-4" />
+          </button>
+          <button 
+            onClick={() => onDeleteTask(task)}
+            className="text-slate-400 hover:text-red-500 hover:bg-red-50 p-1.5 rounded-md transition-colors"
+            title="删除"
+          >
+            <Trash2 className="w-4 h-4" />
+          </button>
+        </div>
+      );
+    }
+    
+    // 失败：[重新审稿] [删除]
+    if (task.status === 'failed') {
+      return (
+        <div className="flex items-center justify-end gap-2">
+          <button 
+            onClick={() => onRunTask(task)}
+            className="border border-indigo-200 text-indigo-600 hover:bg-indigo-50 px-3 py-1.5 rounded-md transition-colors text-xs font-medium flex items-center gap-1"
+          >
+            <RefreshCw className="w-3 h-3" />
+            重新审稿
+          </button>
+          <button 
+            onClick={() => onDeleteTask(task)}
+            className="text-slate-400 hover:text-red-500 hover:bg-red-50 p-1.5 rounded-md transition-colors"
+            title="删除"
+          >
+            <Trash2 className="w-4 h-4" />
+          </button>
+        </div>
       );
     }
     
@@ -250,3 +305,5 @@ export default function TaskTable({
   );
 }
 
+
+